Arrangement and connector for the jointing of electrical wires



J. S. MOLLERHOJ. ARRANGEMENT AND CONNECTOR FOR THE JOINTING OF ELECTRICAL WIRES.

' APPLlCATlON FILED MAR. a. 1919.

1 46,506. Patented July 13, 1920.

Q) 5'51 5 g A a JOHANNES sonENsEN MOLLERHOJ, or rnnnnnixsnnner, NEAR COPENHAGEN,

' DENMARK.

ARRANGEMENT AND CONNECTOR FOR THE JOINTING OF ELECTRICAL WIRES.

Specification of Letters Patent.

Patented July 13, 1920.

Application filed March 6, 1919. Serial No. 280,999.

To all whom it may concern:

Be it known that I, J OHANNES Sonnnsnn Mommie subject of the King of Denmark, residing at Frederiksberg, near C0- penhagen, Denmark, have invented new and useful Improvements in Arrangements and Connectors for the Jointing of Electrical Wires, of which the following is a specification.

The present invention relates to an an rangement and a connector adapted for use in making such electrical wire connections as are not to be taken apart frequently and effected again, for instance telephone central connections, and for connections in electrical installations such as connecting sleeves, chandelier-couplings, branch terminals, junction boxes, connecting roses, switches, fuse boxes and similar electric accessories. The essential feature of the invention consists mainly in the connection being eiiected and secured by pressure of one or more seals of a suitable plastic and, preferably, conductive material, for instance a lead alloy introduced, besides the wire or wires concerned, in a connector fitted with suitable holes or channels.

The invention is illustrated on the drawing where the figures show various manners of constructing the connector and the jointing arrangement.

In the drawings,-

Figures 1 and 2 are perspective views showing two forms of the connector;

Fig. 8 is a vertical section of the form shown in Fig. 2 before inserting the sealing plug;

Fig. 4 is a similar view after inserting the sealing plug;

Fig. 5 is a cross-section of a diii'erent form of connector;

Fig. 6 is a perspective of still another form;

Figs. 7 and 8 are longitudinal sections of two different forms;

Fig. 9 is an elevation of a multiple connector;

Fig. 10 is a cross-section through the transverse holes of the connector in Fig. 9;

Fig. 11 shows the construction of Fig. 10 afterthe introduction of the wires and sealing plug;

Fig. 12 is a mid-section of another construction.

Fig. 1 shows a connector A, which is supposed to be constructed of a suitably strong conductive or non conductive material, wherein there are bored two intersecting holes a and b. In one of the bores a and Z), the wires to be connected to each other or to the connector are introduced, and in the other one there is introduced a sealing plug of suitably plastic and, preferably, electrically conductive material. By means of a punch or suitable tongs, the seal is pressed so firmly against the wires that a portion of the seal is pressed out in the bore containing the wires, so that these become pinched firmly in the connector and to each other. 7 hen the bore or aperture receiving the seal is continued beyond the channel receiving the wires, the sealing will also cause a deformation of the wires, bending them into the rear end of the sealing bore, whereby the mechanical strength of the connection is increased. When it is desired, afterward, to remove the wires from the connector, a pressure must be exerted on the wires, by means of the punch or tongs, from the opposite side of the one wherefrom the seal was inserted, and the wires may then easily be removed. The same seal. will do for inserting and removing the wires a limited number of times, whereafter the seal must be renewed or supplemented by a fresh one. As seals there may be used for instance ordinary lead shots or a tin-lead alloy.

The connectors shown in Figs. 2, 3, 4e, 5 and 6 are supposed to be produced froma tube or a round rod of some suitable material. The wires 0, c and the seal (Z are introduced in the bores a and h, respectively, and are pressed in position in the above described manner. In Fig. 3,the wires and the seal are placed in position ready for being sealed, and in Fig. 4 the sealing is completed.

In Fig. 3, the sealing plug is supposed to be of spherical shape, in Fig. 5 it is supposed to be of cylindrical shape and preliminarily held in the body A. Also, in Fig. 5 the wires run longitudinally of the body instead of transversely thereof as in Figs. 3 and 4t,

and the plug opening extends through but one wall of the body so as to'leave a wall opposed to the plug (Z. The cylindrical connector shown in Fig. 6 is fitted with a slot 6 running through the entire wall thereof for two wires 0, 0, provided that it is constructed of metal, and this connector may be consideredas'consisting-of two connectors of the kind shown in Figs. l to 5K in Fig... 8,.the same connector is shown to. be

used in such a manner that both wires are continued clear through the connector, so

that both of them are fastened by both of the seals.

Asmentioned above, the connector proper may be made from electrically msulat connector must be'of metal, in case it has to.

convey electrical. current, for instance if it has to act as terminal for some apparatus,

for instance a switch or the like.

While the arrangements in- Figs 1 tov 6 and Fig. 8 acting as single-poled pointing or branching connectors, may be carried out by using an insulating material for the connector, this would not be feasible in the arrangement shown in Fig. 7, unless there-is inserted in the connector, before the sealing, a metal bridge forming a conductive connection between the wires 0. When made of insulating material, and without this metal bridge, the connector shown in Fig. 7 will be a two-poled connector suitable for the interconnection of for instance two wires insertedeach in its own side of the connector instead of the shown single wires 0;

In Figs. 9 and 10, there is shown a connector in side elevation and cross-section, respectively, and fitted withthree pairs of holes-a, b. This connector'may be considered. to be formed as a combinationofthree connectors of the type shown in Fig. 1. Theconnector may be'used as a multi-poled one,

but the condition for this is, of course, that it should be constructed of insulating material. For branching out from one and the same pole, or for similar use, it may be used as it is, provided it is made of metal and, if it is made of insulating material,

when thereis inserted a] metal wire in the longitudinal bore 7, which wire will then form a bridge between. the variouspairs of holes a, 7). There may also beinsertedimore than one such wire. In similar manner, a connectlon may be made between a greater .or smaller number of the pairs of holes in a connector otthis kind, fitted with more than two pairs of holes.

As mentioned above, one wire-opening may correspond to several seal-open1ngs, but one seal-opening may also correspond to several wireopenings, and it is thereby attained that twoor more conductors may be interconnected'bymeans of the same seal, without all the conductors having to be introduced in the same hole or opening. For

instance the'connector shown in Figs. 9 and lO may be fitted with one or more pairs of holes a, b and may, for instance, be used in such a manner that 'a conductor, whereto one or more other conductors are to be con nected, may be introduced, instead of the wire or bridge 7, into the hole adapted to receive this wire, and the other conductor or conductors may be inserted into the wireholes of oneor more pairs of holes a, 7).- Fig. 11 shows the construction of Fig. 10 after the wires are inserted and the sealing plug forced in. The wire or wires 0 are forced into close conductive contact with the wire or wires introduced through the longitudinal. holes 7. This construction is useful for branching one or more wires from another-i In Fig. .12 is shown a connector Aof metal encircled by an insulating sleeve '9.

The above described constructions are 'to be considered merely as examples, which may be modifiedessentially, without departure from the principle underlying the in vention. In referring to an aperture, a seal, or a tubular body, it will be understood that it is not intended to limit the claims to this precise construction, and more than one of either can be used. 7

Having now particularly "described and ascertained my said invention and the manner in which the same is to be performed, I declare that what I claim is: I

1; A connecting clevice'for electric wires comprisinga body recessed to receive the wire and to expose. a part of the wire laterally thereof, and a soft sealing plug. fitting in saidrecessed portion to be engaged by the body independently of the wire and normally leaving the recess free to receive the wire and in operation engaging the wire fromfone side only, and adapted tobe pressed into binding. engagement against said laterally exposed part of the wire.

2. A connecting device for electric wires comprising a body recessed to receive the wire and to expose a part of the wire laterally thereof on more than one side, and a soft sealing plug fitting in said recessed portion to be engaged by' the body inde pendently of the wire and normally leaving the recess free to receive the wire, said plug being entirely independent of any plug or closure on any other side, and adapted to be pressed into binding engagement against the adjacent laterally exposed part of the Wire.

3. A connecting device for electric Wires comprising a body recessed to receive the wire and to present oppositely opening portions arranged to intersect the Wire receiving portion and through which to expose the wire laterally thereof on opposite sides, and a soft sealing plug fitting in one of said. oppositely opening portions to be engaged by the body independently of the Wire and normally leaving the recess free to receive the Wire and in operation engaging the Wire from one side only, and adapted to be pressed into binding engagement against said one exposed side of the Wire.

4. A connecting device for electric Wires comprising a body having a bore or recess straight through the same to readily permit the insertion of the wire and to expose a part of the Wire laterally through a substantially straight open portion, and a small soft sealing plug fitting said open portion and adapted to be pressed to create a bind ing engagement of the end thereof against the exposed part of the Wire and also a binding engagement laterally of the plug with the Wall of said open portion.

5. A connecting device for electric Wires comprising a body having straight bores or openings crossing each other one for receiving the Wire and the other receiving a small soft plug compressible from one direction to bindingly engage the Walls of its opening and the Wire and to distort the wire, but engageable from the other side of the Wire to straighten the Wire and disengage the plug therefrom.

In Witness whereof, I have hereunto signed my name in the presence of tWo subscribing Witnesses.

JOHANNES sininsnr nLLERHJ.

Witnesses JULIUs LEHMANN, CARL HnNNEMEYsnN. 

